Other mistake: Phil looks up the driving time from Ashford and Diamond Falls. It is 4 hours 12 minutes. Later, he goes to meet Annie, and she has suggested they meet at Colson Bay, which is "in the middle." He is on a train, and he says that in 4 hours 12 minutes he will meet her. Even ignoring the fact that the train ride duration may or may not be four hours 12 minutes, that cannot be, as they are meeting "in the middle" of that distance.
Other mistake: The Zeds infect others through directly touching them. This rule extends to touching their clothes and backpacks, which makes no sense.